We're looking for the CTO's number two: someone who leads the engineering team, keeps coding, and has a voice of their own in decisions. A small, very senior team with a lot of autonomy and genuinely hard technical problems: scale, distributed systems, and a whole AI layer still to be built into the product.

⚠️ This is a hybrid role based in Buenos Aires — you'll be on-site 1–2 days a week, so you need to live in (or be willing to relocate to) the Buenos Aires area

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What you'll do

- Lead a team of 4 up close (2 fullstack, 1 infrastructure, 1 security), with room to grow

.• Keep writing code in the critical parts: this is a leader who also ships

.• Take a still-fuzzy business need and turn it into a plan: understand the real problem, validate it, define the minimum scope, prototype fast, and estimate the effort

.• Debate decisions with the CTO as an equal, with solid reasoning

.• Drive the use of AI in the team's day-to-day and in the product (automated decisions: who to contact, when, and through which channel)

What we're looking for

- You're hands-on today, not "I used to code a few years ago.
- You've led small teams up close (one-on-ones, hiring, code review), not 30 people through middle managers




- You've lived high-volume production and distributed systems: real incidents, queues, bottlenecks under load
- You use AI in your work every day and can say what you do differently with it
- You work in English with international clients and vendors

Stack

- Backend: TypeScript and Node.js (microservices architecture; some legacy PHP being migrated)
- Frontend: Vue
- Messaging & queues: RabbitMQ
- Data stores: Redis, MySQL, MongoDB
- Containers & infrastructure: Docker, Kubernetes, AWS
- AI: coding agents (e.g. Claude Code, Cursor, Copilot) as part of the team's daily work

Nice to have (not required)

- Experience in CPaaS, fintech, marketplaces, logistics, adtech or gaming
- Having taken an AI model to production with measured impact

Details

- ? Location: Buenos Aires — hybrid, 1–2 days on-site per week. You must be based in the Buenos Aires area (or willing to relocate)
- English required (meetings with clients and vendors across Africa, Europe and LATAM).

How to apply

- ? Send your CV to [email protected]. If you're based in the Buenos Aires area and you're hands-on today, we'd love to hear from you

📌 Engineering Lead - CPaaS at Scale, hands-on (Buenos Aires)
🏢 Dynamo
📍 Buenos Aires